cljsjs/filesaverjs

[cljsjs/filesaverjs "1.3.3-0"] ;; latest release

This jar comes with deps.cljs as used by the Foreign Libs feature of the ClojureScript compiler. After adding the above dependency to your project you can require the packaged library like so:

(ns application.core
  (:require cljsjs.filesaverjs))

...

(defn download [filename content & [mime-type]]
  (let [mime-type (or mime-type (str "text/plain;charset=" (.-characterSet js/document)))
        blob (new js/Blob
                  (clj->js [content])
                  (clj->js {:type mime-type}))]
    (js/saveAs blob filename)))

(defn download-button []
  [:button
   {:on-click #(download "test.txt" "Hello world!\n")}
   "Download"])

(defn home-page []
  [:div [:h2 "Welcome to filesaverjs-test"]
   [:div {:id "copy-this"} "Testing"]
   [download-button]
   [:div [:a {:href "/about"} "go to about page"]]])